Improvement in portable steam-engines



2 Sheets-Sh eet 1. H. K KRIEBEL. Portable Steam-Engine.

No. 222,996. Patented Dec. 30, 1 879 2 Sheets-Sheet 21 H. K KRIEBEL. Portable Steam-Engine.

No. 222,996'.- P atented Dec. 30,1879.

,, I I I N-FETEHS, FHDTO-LITHOGRAPHER, WASHINGTON, D C.

U ITED STATES PATENTQFFICE.

HOSEA K. KRIEBEL, OF GONZALES, TEXAS, ASSIGNOR OF ONE-HALF OF HIS RIGHT TO FREDERICK LIGHT, JR, OF SAME PLACE.

IMPROVEMENT IN PORTABLE STEAM-ENGINES.

Specification forming part of Letters Patent No. 222,596, dated December 30, 1879 application filed November 11, 1879.

To all whom it may concern Be it known that I, HOSEA K. KRIEBEL,

of Gonzales, in the county of Gonzales and' State of Texas, have invented certain new and useful Improvements in Portable Steam-Engines; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

Figurelis a side view of myimproved steamengine and boiler, and Fig. 2is a vertical sectional View, on a larger scale, of the engine.

Similar letters of reference indicate corre sponding parts in both figures.

This invention consists in certain improvements in reversible steam-engines, as will be hereinafter more fully described, and particularly pointed out in the claims.

A in the drawings refers to the base supporting the boiler B and uprights O G, having boxes or bearings D D for the shaft E of the oscillating cylinder F. The lower end of the latter is provided with a solid box or chest, G, the lower semi-cylindrical side of which is seated in the vertically-sliding valve-chest H. The latter consists of a cylindrical body, I, having a central downward-projectin g stem, J. A longitudinal perforation, K, extends through the stem and body, and the latter is provided with an annular chamber, L, having on one side an opening, M, by which it is connected with the steam-chest N. On opposite sides of the central opening, K, the annular chamber L is provided with openings or ports 0 O, for the passage of steam into the cylinder. An opening, 1, extends through the box Got the latter to the bottom of the cylinder. Another passage, Q, extends upward along the side of the cylinder and opens into the top of the latter, as shown. The lower ends of the passages P Q are made to register with the ports K O.

The upper cylindrical portion of the valvechest H forms an annular flange, by which it is supported upon springs R It, resting upon the base A, the effect of said springs being to force the valve-chest upward against the cylinder, forming a tight joint with the latter. The

chest H.

valve-chestis inclosed in a casing, S, the cover of which, T, is recessed to form a circumferential stuffing-box, U, in which suitable packing may be placed to prevent the waste of steam. In the base A an opening, V, is provided for the accommodation of the stem J.

In a suitable box or casin g, W, arranged underneath the base A, an opening, X, is provided, to receive a cap, Y, having a cylindrical rim, Z, fitting around the stem J and forminga guide for the latter. For the accommodation of the upper end of the rim Z, an annular recess,

A, serving as a stuffing-box, is formed in the under side of base A, and a similar recess or stuffingbox, B, is formed for the cap Y in casing W.

The steam-chest N, as above stated, is connected with the annular recess L in valve- At its opposite end a passage, 0, connects it with the casin g or chamber W, and, through openings D in the rim Z, with the central chamber, K, in the valve-chest. Located centrally in the side of the steam-chest is the exhaust-port E, which, together with one of the steam-ports, may be covered by a sliding cup-valve, F, which is of the usual construction and operated by a rod or handle, G. Connected to the steam-chest at any suitable point is the main pipe H, by which steam is conducted from the boiler.

The boiler B (in the drawings hereto annexed a vertical-flue boiler is shown, but any other kind may be used if desired) isprovided with a transverselylocated tube, J, forminga bearing for the main shaft K, for which supplemental boxes or bearings may be provided upon brackets L upon the sides of the boiler. At one end the shaft M is provided with the balance-wheel N. Atits other end, adjoining the cylinder, it has the crank wheel or disk 0, to the crank or pin P upon which the pistonrod Q is pivoted in the usual manner. In the construction and. arrangement of this and of the piston It no novelty is claimed.

From the foregoing description, and by reference to the drawings hereto annexed, the operation and advantages of my invention will be readily understood by those skilled in the art to which it appertains.

In the drawings the slide-valve is shown to be in such a position as to cover the passage leading to the chamber L of the valve-chest and the exhaust-port. The steam, coming from the boiler, passes into the steam-chest N,-

through passage 0 into the chamber W, from thence through the openings D in rim Z into the central ch amberor opening, K, of the valvechest. In the drawings the said opening is shown to register with the passage Q, through which the steam is thus conducted to the top of the cylinder, where a downward pressure is exerted upon the piston. The steam confined below the latter is, by the down motion, forced out through the unobstructed opening .0 into the annular chamber L, through opening M into the steam-chest, and under valve F to the exhaust-port. The down motion of the piston-rod partly rotates the crank wheel or disk, to which its upper end is pivoted, thus oscillating or reversing the position of the cylinder. and bringing the opening P over the steam-entrance K, from which steam is thus admitted into the bottom of the cylinder, forcin g the piston upward and causing the steam to exhaust from the top of the cylinder.

By reversing the position of valve F the steam is admitted into the annular chamber L, and from the openings 0 of the latter into the cylinder, while the exhaust is through the chamber K, thus reversing the operation of the engine.

By running the main shaft through the boiler space is economized and a firm foundation is insured. For obvious reasons this part of my improvement is specially adapted to portable engines.

I am aware of the patent to Baxter, August 20, 1878, and Iclaim nothing therein shown.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United Statesl. The combination, with the vertically-sliding valve-chest, supported upon springs R R and having stem J, of the cap Y, having rim Z, and the stuffing-boxes, arranged as herein described, substantially as and for the purp ese set forth. 7. V

2. In a reversible oscillating steam-engine, constructed substantially as herein described, the combination of the vertically-sliding valvechest, supported upon springs It, casing S, cover T, and cap Y, having rim Z, as set forth.

In testimony that I claim the foregoing as my own I have hereto aifixed my signature in presence of two witnesses.

HOSEA K. KRIEBEL.

Witnesses:

G. W. LITTLEFIELD, G. N. DILWORTH. 

